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Preliminary
I/O PORTS
S3C2451X RISC MICROPROCESSOR
11-50
PDSMCON (Power Down SRAM Control Register)
Register Address
R/W
Description
Reset
Value
PDSMCON 0x56000118 R/W
Memory
I/F control register
0x05451500
PDSMCON Bit
Description
Reset Value
Reserved [31:28]
Reserved
0x0
PSC_CF1 [27:26]
nREG_CF,
nOE_CF, nWE_CF (inactive : “1”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
01
PSC_CF0
[25:24]
CARD_PWREN, RESET_CF (inactive : “1”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
01
PSC_NF1 [23:22]
nFCE, nFRE, nFWE pin status (inactive : “1”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
01
PSC_NF0 [21:20]
ALC, CLE pin status (inactive : “0”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
00
PSC_nRWE [19:18]
nRWE pin status (inactive : “1”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
01
PSC_nROE [17:16]
nROE pin status (inactive : “1”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
01
PSC_RSM [15:14]
RSMCLK,RSMAVD pin status (inactive : “0”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
00
PSC_nRBE [13:12]
nRBE[1:0] pin status (inactive : “1”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
01
PSC_nRCS51 [11:10]
nRCS51 pin status (inactive : “1”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
01
PSC_nRCS0 [9:8]
nRCS0 pin status (inactive : “1”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
01
PSC_RDATA [7:6]
RDATA[15:0] pin status (inactive : “0”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
00
PSC_RADDRH [5:4]
RADDR[25:16] pin status (inactive : “0”)
00 = output 0 01 = output 1
10 = Hi-Z 11 = Not-Available
00